Words related to *akwa-

aqua (n.)

"water," late 14c., from Latin aqua "water; the sea; rain," from PIE root *akwa- "water." Used in late Middle English in combinations from old chemistry and alchemy to mean "decoction, solution" (as in aqua regia, a mix of concentrated acids, literally "royal water," so called for its power to dissolve gold and other "noble" metals). As the name of a light greenish-blue color, 1936.

word-forming element meaning "water," from Latin aqua "water; the sea; rain," cognate with Proto-Germanic *akhwo (source of Old English ea "river," Gothic ahua "river, waters," Old Norse Ægir, name of the sea-god, Old English ieg "island"), from PIE root *akwa- "water."
aqua vitae (n.)
also aqua-vitae, early 15c., Latin, literally "water of life," an alchemical term for unrefined alcohol. Applied to brandy, whiskey, etc. from 1540s. See aqua- + vital. Compare whiskey, also French eau-de-vie "spirits, brandy," literally "water of life."
aqualung (n.)
"portable air tanks and apparatus for breathing underwater," 1950, from aqua- + lung. Developed 1943 by Jacques Cousteau and Emile Gagnan.
aquamarine (n.)
1590s, agmarine, "bluish-green type of beryl," from French or Provençal, from Latin aqua marina "sea water," from aqua "water" (from PIE root *akwa- "water") + marina, fem. of marinus "of the sea" (from PIE root *mori- "body of water"). Apparently first used as a description of a bluish-green color by John Ruskin, 1846. Abbreviation aqua is attested from 1936.
aquanaut (n.)
1881, "underwater explorer," in a futuristic novel, from aqua- "water" + ending from Greek nautes "sailor" (from PIE root *nau- "boat").
aquarelle (n.)
"thin water-color painting," 1855, from French aquarelle (18c.), from Italian acquerella "water-color," diminutive of acqua, from Latin aqua "water" (from PIE root *akwa- "water").
aquarium (n.)

1830, noun use of neuter of Latin aquarius "pertaining to water," as a noun, "water-carrier," genitive of aqua "water" (from PIE root *akwa- "water"). The word existed in Latin, but there it meant "drinking place for cattle." Originally especially for an artificial pond growing aquatic plants; of indoor "ocean gardens" by 1853. The Victorian mania for indoor aquariums began with the book "The Aquarium," published 1854 by English naturalist Philip Henry Gosse. An earlier attempt at a name for "fish tank" was marine vivarium.

faint constellation and 11th zodiac sign, late Old English, from Latin aquarius, literally "water carrier," properly an adjective, "pertaining to water" (see aquarium); a loan-translation of Greek Hydrokhoos "the water-pourer," the old Greek name of this constellation.

Aquarians were a former Christian sect that used water instead of wine at the Lord's Supper. Aquarian Age (alluded to from 1913) is an astrological epoch (based on precession of the equinoxes) supposed to have begun in the 20th century (though in one estimate, 1848), embodying the traits of this sign and characterized by world peace and human brotherhood. It would last approximately 2,160 years. The term and the concept probably got a boost in popular use from the rock song Age of Aquarius (1967) and when An Aquarian Exposition was used as the sub-name of the Woodstock Music & Art Fair (1969).
aquatic (adj.)
late 15c., "pertaining to water," from Old French aquatique (13c.), from Latin aquaticus "growing in water; bringing rain," from aqua "water" (from PIE root *akwa- "water"). From 1640s as "living in water."